Home / 42,281.20-63,401.35-15,609.12

Finding the Fourth Proportional to 42,281.20, 63,401.35 and 15,609.12

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Solution

The fourth proportional to 42,281.20, 63,401.35 and 15,609.12 is: 23,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,281.20 : 63,401.35 = 15,609.12 : x
  2. Step 2: Convert to fraction form
    42,281.20/63,401.35 = 15,609.12/x
  3. Step 3: Cross multiply
    42,281.20x = 63,401.35 × 15,609.12
  4. Step 4: Simplify right side
    42,281.20x = 989,639,280.31
  5. Step 5: Solve for x
    x = 989,639,280.31/42,281.20
  6. Step 6: Final answer
    x = 23,406.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.